Surgical instrument.



AUGUST HEISS, OF SOLINGEN, GERMANY.

SURGICAL INSTRUMENT.

SPECIFICATION formingpart of Letters Patent No. 671,067, dated April 2,1901.

Application filed September 19, 1899- Serial No. 730,980. (No model.)

To ctZZ whont it may concern:

Be it known that I, AUGUST HEIss, a citizen of Germany, and a residentof Solingen, Germany, have invented certain new and useful Improvementsin Surgical Instruments,

of which the following is a specification.

This invention refers to an instrument for the extirpation of thetonsils which is not only very simple in shape and easily handled, butcan also be very conveniently cleaned, being easily taken apart in threeseparate parts. The characteristic point of the instrument is a bentfork g in a groove of the upper part of the instrument, getting itsdirection by a fork e, the short shaft of the latter serving at the sametime as director of the upper part of the instrument. As is ordinarilythe case with such instruments, the fork pierces first through thetonsil to be cut out and is then lifted with the latter, whereupon oneof the cutting-blades moves over the other. i

The drawings accompanying this application give an idea of the device.

Figures 1 and 2 are views of the instrument with the fork retracted asseen from above and from a side. put forward and in raised position.Fig. 4 shows the instrument after the extirpation of the tonsil has beenmade, the upper blade being retracted. Figs. 5, 6, and 7 show theseveral parts in smaller measure.

The three chief parts of the instrument are indicated on the drawings bya, b, and 0. Part or shank a is stationary while parts or shanks b and care movable. Part a, which forms the lower part of the instrument, isprovided with the knife m, the forks ef, and the setscrew 3. Part I),the lower part of the instrument, is provided with the knife 42, theeyes at, the slots 7; Z, and a hole 0, taking in temporarily the bolt 8of part a, while part c, which is peculiarly bent at the place indicatedby h, is provided with the fork g, the eye p, the inclined claw k, andthe screw q. Part I) is held and conducted by means of the eyes 01,Which are lateral and projecting downward,

Fig. 3 shows the fork while part c is set into the forks e and fand ismovable. In putting together or taking apart of parts a and b the latteris set diagonal to the former, so that the fork 6 can be conductedthrough the slot 1;. The turning of both parts in the same directioneffects their holding together. At the place indicated on the drawingsby 70 part c is so narrow that it can be set in or taken out of theforks e f, contracting above, while the taking out is no more possiblewhen it is moved forward or backward. Part 0 is resting in a groove ofpart b, and consequently gives to the latter the direction, as thegroove will not admit a lateral movement of the same, neither when thefork is lowered nor when it is raised, as in the latter case the lowerpart of the fork-piece 0 will catch the groove. In order to prevent thepart c from retracting in the forks e f so far that the narrower partsget into the same and cause a detaching, the screw q is provided, whichwhen set downward will catch the fork f.

The instrument works as follows: When the fingers of the hand directingthe instrument cause a retraction of parts I) and c, the fork g, nearthe knife n, will first go over the same. The bend (indicated on thedrawings by h) causes a raising of the fork, and there by a drawingupward of the tonsil to be operated. A further movement will cause aretraction of part b to the part a and the cutting through of thetonsil. The higher the screw 3 is set the more difficult is theloosening of part b.

I claim-- In a surgical instrument the combination

